package days31.title637;

import java.util.ArrayList;
import java.util.List;
import java.util.Queue;

class Solution {
    List list = new ArrayList();
    List<Double> resultList = new ArrayList<>();
    public List<Double> averageOfLevels(TreeNode root) {
        bfs(root);
        return resultList;
    }
    private void bfs(TreeNode root) {
        
    }
}